Comic Title: Superman's Pal, Jimmy Olsen #51
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: March 1961
On Sale Date: January 5, 1961 Copyright Date January 5, 1961
Source: Library of Congress, Periodicals 1961

Frequency: Monthly, with the exception of Feb., May, Aug., and Nov.
Cover Price: $0.10
Page Count: 32
Circulation: 492000
Editor: Mort Weisinger

Title: "The Girl with Green Hair"
Pages: 9

Feature(s):
Jimmy Olsen (of Earth-1)

Writer: Otto Binder
Penciller: Curt Swan
Inker: John Forte

Reprinted In:
Showcase Presents:Supergirl Vol. 1 TPB (2008)
Showcase Presents:Superman Family Vol. 4 TPB (2013)

Feature Character(s)

• Jimmy Olsen (last appearance in Superman's Pal, Jimmy Olsen #51; next appearance in Superman's Pal, Jimmy Olsen #51)

Supporting Character(s)

• Lois Lane (last appearance in Superman's Pal, Jimmy Olsen #51; next appearance in Superman's Pal, Jimmy Olsen #51)
• Lucy Lane (last appearance in Superman's Girl Friend, Lois Lane #23; next appearance in Superman's Girl Friend, Lois Lane #24)
• Professor Potter (last appearance in Superman's Pal, Jimmy Olsen #50; next appearance in Superman #148)

Guest Appearance(s)

• Supergirl (last appearance in Superman's Girl Friend, Lois Lane #23; next appearance in Action Comics #274)

Other Character(s)

• Ricky Avalon (a singer; no further appearances)

Synopsis:
Supergirl disguises herself as Ka-Ra, an alien girl with green hair. She pretends to fall in love with Jimmy in order to make Lucy Lane jealous. Jimmy, who doesn’t know Ka-Ra’s secret, begins dating the new girl. Lucy does indeed become jealous, and Jimmy chooses to stay with Lucy. Ka-Ra leaves forever, but Jimmy’s happiness is short lived. Lucy finds a Ka-Ra robot designed by Professor Potter as a gift and believes that Jimmy has hoaxed her. Now Jimmy is without either girl.